Added enviroment display and customization

admin_interface/templates/admin/base_site.html

@@ -64,4 +64,9 @@ https://github.com/fabiocaccamo/django-admin-interface
     <span>{% if theme.title %}{% trans theme.title %}{% else %}{% trans 'Django administration' %}{% endif %}</span>
     {% endif %}
 </h1>
+{% endblock %}
+
+{% block welcome-msg %}
+{% get_admin_interface_theme as theme %}
+{% if theme.env_visible %}<span class="enviroment-label {{ theme.env }}"></span> - {% endif %}{{ block.super }}<br>
 {% endblock %}